According to an official National Highway Traffic Safety Administration report, "the brake lamps may intermittently flash without the brakes being applied and the cruise control may disengage" on these vehicles. The report does not state that the brakes themselves are faulty, but rather that "if the brake lamps flash when the vehicle is not slowing, a following driver may not adjust vehicle speed when the vehicle is in fact braking."

Dealers will notify affected ATS, XTS and Impala owners about this issue, and the vehicles' body control modules will be replaced, free of charge. The official recall is expected to begin later this week.